Premium
IR studies of coordinatively unsaturated surface compounds on silica gel. I. CO complexes of manganese(II), iron(II), and cobalt(II)
Author(s) -
Rebenstorf B.,
Larsson R.
Publication year - 1979
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.19794530616
Subject(s) - cobalt , manganese , chemistry , chromium , molecule , infrared spectroscopy , octahedron , inorganic chemistry , crystallography , organic chemistry , crystal structure
Using two different methods of preparation (vacuum heat treatment at 900°C with a pressure below 5 · 10 −3 and higher than 10 −2 Torr) of the title surface compounds made it possible to investigate several of their CO complexes. The IR bands of the complexes with two CO molecules are interpreted on the basis of the proven assignments of IR spectra of carbonyls as tetrahedral (manganese(II)), cis square‐planar (cobalt(II)) and trans square‐planar (iron(II), cobalt(II)). The known IR spectra of similar chromium(II) CO surface compounds are explained in the same way on the basis of cis and trans square‐planar complexes.